Passing querystring to webservice through Ajax cascading dropdown.

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Can any one tell me how can i get value from query string in web service.

Posted 17-Jul-12 0:16am

Sunil Shende

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JeevanKumar777 13-May-13 7:12am

hai gdevening,
can u help me by giving the solution of inserting data in database using webservice and after inserting the data how to display the fields in the url using querystring plz help me

2 solutions

Solution 1

Have a look at this stackoverflow question that explains what you need to do, (answer by Scott Anderson)

http://stackoverflow.com/questions/2006828/possible-to-invoke-asmx-service-with-parameter-via-url-query-string[^]

If you *really* need to allow HttpGet to your webservice, then you will be able to access the query string as in the example.

However, this does violate the pattern somewhat, if you need to allow HttpGet then consider creating a REST service, as per the accepted answer on that link

http://www.techbubbles.com/wcf/wcf-and-rest/[^]

Posted 17-Jul-12 0:57am

Dylan Morley

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Sunil Shende · Accepted Answer · 2012-07-18T23:38:00

XML

<ajaxToolkit:CascadingDropDown ID="ddlCollegeNameCascadingDropDown" runat="server" Category="RC" TargetControlID="ddlRC" LoadingText="Loading Regional Center..." PromptText="--Select Regional Center--" PromptValue="0" ServiceMethod="BindRCdropdown" ServicePath="../WebService/DropdownWebService.asmx"></ajaxToolkit:CascadingDropDown>

use ServiceMethod="BindRCdropdown" in code behind rather than apx page like

C#

ddlCollegeNameCascadingDropDown.ServiceMethod = "BindCollegedropdown?CRS=" + Request.QueryString["CRS"];

in web service call to get your QueryString

C#

strUGPG= HttpContext.Current.Request.QueryString["CRS"].ToString().Trim();

Thanks